2J0V

The crystal structure of Arabidopsis thaliana RAC7-ROP9: the first RAS superfamily GTPase from the plant kingdom

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 

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Literature

The Crystal Structure of Arabidopsis Thaliana Rac7/Rop9: The First Ras Superfamily Gtpase from the Plant Kingdom.

Sormo, C.G., Leiros, I., Brembu, T., Winge, P., Os, V., Bones, A.M.

(2006) Phytochemistry 67: 2332

  • DOI: 10.1016/j.phytochem.2006.08.011
  • Primary Citation of Related Structures:  
    2J0V

  • PubMed Abstract: 

    • Arabidopsis thaliana RAC/ROP GTPases constitute a plant specific Rho GTPase family in the RAS superfamily, which has been implicated in numerous pivotal signalling cascades in plants. Research has shown that plants in some cases have evolved different modes of regulating Rho GTPase activity as compared to the equivalent systems in animals and yeast ...

    Arabidopsis thaliana RAC/ROP GTPases constitute a plant specific Rho GTPase family in the RAS superfamily, which has been implicated in numerous pivotal signalling cascades in plants. Research has shown that plants in some cases have evolved different modes of regulating Rho GTPase activity as compared to the equivalent systems in animals and yeast. In order to gain structural insight into plant signaling at the molecular level, we have determined the first crystal structure of a RAC-like GTPase belonging to the RAS superfamily from the plant kingdom. The structure of AtRAC7/ROP9 bound to GDP was solved at a resolution of 1.78 A. We have found that the structure of plant Rho GTPases is based upon a conserved G-domain architecture, but structural differences were found concerning the insert region and switch II region of the protein.

    Organizational Affiliation: 

    Department of Biology, Section for Molecular Biology and Biotechnology, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RAC-LIKE GTP-BINDING PROTEIN ARAC7A, B, C, D212Arabidopsis thalianaMutation(s): 1 
Gene Names: ARAC7, ROP9, At4g28950, F25O24.70
UniProt
Find proteins for O82480 (Arabidopsis thaliana)
Explore O82480 
Go to UniProtKB:  O82480
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO82480
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 
  • Space Group: P 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.76α = 90
b = 30.2β = 100.06
c = 139.36γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-10-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance